package com.example.demo;

import ch.qos.logback.core.util.StringUtil;
import jakarta.servlet.http.HttpSession;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.bind.annotation.SessionAttribute;

@RequestMapping("user")
@RestController
public class UserController {
    @RequestMapping("login")
    public Boolean login(String userName, String password, HttpSession session){
//        if (userName == null || userName.length() == 0 ||
//             password == null || password.length() == 0){
//            return false;
//        }
        //上述方法string也提供了一个简洁的方法进行替代：
        //判空
        if (!StringUtils.hasLength(userName) || !StringUtils.hasLength(password)){
            return false;
        }
        //判断密码是否正确
        if ("wrm".equals(userName) && "wrm".equals(password)){
            session.setAttribute("userName",userName);
            return true;
        }
        return false;
    }
    @RequestMapping("index")
    public String getUserName(@SessionAttribute("userName") String userName){
        return userName;
    }
}
